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https://gitlab.com/freepascal.org/fpc/source.git
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84 lines
2.3 KiB
ObjectPascal
84 lines
2.3 KiB
ObjectPascal
{ %CPU=i386 }
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program tasm23a;
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{$ASMMODE INTEL}
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{$S-}
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const
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t_size = 19;
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procedure t; nostackframe; assembler;
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asm
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mov eax, [ebx[5]][edi][54][-17][45][4] { mov eax, [ebx+edi+5Bh] }
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mov eax, [[ebx+5]+[edi+54]+[-17]+[45]+[4]] { mov eax, [ebx+edi+5Bh] }
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mov eax, [5[7]] { mov eax, [000Ch] }
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mov eax, [5+[7]] { mov eax, [000Ch] }
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end;
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procedure t_verify; nostackframe; assembler;
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asm
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mov eax, [ebx+edi+5Bh] { mov eax, [ebx[5]][edi][54][-17][45][4] }
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mov eax, [ebx+edi+5Bh] { mov eax, [[ebx+5]+[edi+54]+[-17]+[45]+[4]] }
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mov eax, [000Ch] { mov eax, [5[7]] }
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mov eax, [000Ch] { mov eax, [5+[7]] }
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end;
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const
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t2_size = 34;
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procedure t2; assembler;
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var
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locl: longword;
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asm
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mov eax, locl { mov еax, [еbp-04] }
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mov eax, cs:locl { mov еax, cs:[еbp-04] }
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mov eax, [cs:locl] { mov еax, cs:[еbp-04] }
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mov eax, [cs:[locl]] { mov еax, cs:[еbp-04] }
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mov eax, cs:locl[5] { mov еax, cs:[еbp+01] }
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mov eax, cs:5[locl] { mov еax, cs:[еbp+01] }
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end;
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procedure t2_verify; assembler;
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var
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locl: longword;
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asm
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mov eax, [ebp-04] { mov еax, locl }
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mov eax, cs:[ebp-04] { mov еax, cs:locl }
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mov eax, cs:[ebp-04] { mov еax, [cs:locl] }
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mov eax, cs:[ebp-04] { mov еax, [cs:[locl]] }
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mov eax, cs:[ebp+01] { mov еax, cs:locl[5] }
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mov eax, cs:[ebp+01] { mov еax, cs:5[locl] }
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end;
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{ This version works in all i8086 memory models }
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function CompareCode(cp, cp2: CodePointer; sz: Integer): Boolean;
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var
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lastbyte: Byte;
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begin
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if CompareByte(cp^, cp2^, sz) <> 0 then
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begin
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CompareCode := False;
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exit;
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end;
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{ check also that the last byte is a retn instruction }
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lastbyte:=PByte(cp)[sz-1];
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if lastbyte<>$C3 then
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begin
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CompareCode := False;
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exit;
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end;
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CompareCode := True;
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end;
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procedure Error(N: Integer);
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begin
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Writeln('Error! ', N);
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Halt(1);
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end;
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begin
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if not CompareCode(CodePointer(@t), CodePointer(@t_verify), t_size) then
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Error(1);
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if not CompareCode(CodePointer(@t2), CodePointer(@t2_verify), t2_size) then
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Error(2);
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Writeln('Ok!');
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end.
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